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Finding the Fourth Proportional to 15,132.58, 20,882.87 and 8,327.02

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Solution

The fourth proportional to 15,132.58, 20,882.87 and 8,327.02 is: 11,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.58 : 20,882.87 = 8,327.02 : x
  2. Step 2: Convert to fraction form
    15,132.58/20,882.87 = 8,327.02/x
  3. Step 3: Cross multiply
    15,132.58x = 20,882.87 × 8,327.02
  4. Step 4: Simplify right side
    15,132.58x = 173,892,052.69
  5. Step 5: Solve for x
    x = 173,892,052.69/15,132.58
  6. Step 6: Final answer
    x = 11,491.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.